Google Pixel 7a vs Oppo K9

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800
3G network

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 66, 71 - GWKK3, G0DZQ; 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 21, 25, 28, 32, 38, 39, 40, 41, 42, 66 - GHL1X, G82U8

LTE frequency band 1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 41
5G network

5G band 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 28, 30, 38, 41, 48, 66, 71, 77, 78 SA/NSA/Sub6 - GWKK3; 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 28, 30, 38, 41, 48, 66, 71, 77, 78, 260, 261 SA/NSA/Sub6/mmWave - G0DZQ; 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 75, 76, 77, 78, 79 SA/NSA/Sub6 - GHL1X, G82U8

5G band 1, 3, 28, 41, 77, 78 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload

-
LTE speed

LTE-A(CA)

LTE-A, 1200 Mbps download, 210 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass 3), aluminum frame, plastic back

Aluminium alloy, glass
SIM

Nano-SIM and eSIM

Dual SIM (Nano-SIM, dual stand-by)
Height

152 mm

159.1 mm
Width

72.9 mm

73.4 mm
Thickness

9 mm

7.9 mm
Weight

193.5 g

172 g
Waterproof

IP67 (1.5m for 30 mins)

-
Dust proof

IP67

-
Colors

Charcoal, Coral, Sea, Snow

Aurora, Black

Display
Display type

OLED

Super AMOLED
Physical size

6.1 inches

6.43 inches
Resolution

1080 x 2400 pixels

1080 x 2400 pixels
Pixel density

429 ppi

409 ppi
Display colors

16777216

16777216
Protection

Corning Gorilla Glass 3

Scratch resistant, 2.5D curved glass screen
Display features

Always-on display, HDR, 90Hz

90Hz, 430 nits (typ), 750 nits (peak)

Main camera
Camera type

Dual

Triple
Main camera

(wide) , 64 MP, f/1.9 , 80˚ , 26 mm, 1/1.73" , 0.8 µm, 8x digital zoom

(wide) , 64 MP, f/1.7 , 80˚ , 1/2.0" , 0.8 µm, 20x digital zoom
(ultrawide) , 13 MP, f/2.2 , 120˚ , 1.12 µm

(ultrawide) , 8 MP, f/2.2 , 119˚
(macro) , 2 MP, f/2.4
Primary camera resolution

9280 x 2160 pixels

9280 x 6920 pixels
Primary camera video

4K@30/60fps, 1080p@30/60/120/240fps, OIS

4K@30fps, 1080p@30/60/120fps; gyro-EIS
Primary camera flash

dual-LED flash

LED flash
Camera features

Autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, laser autofocus

Autofocus, continuous autofocus, continuous shooting, digital zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, contrast detection autofocus

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(ultrawide) , 13 MP, f/2.2 , 95˚ , 20 mm, 1.12 µm

(wide) , 32 MP, f/2.4 , 80˚ , 0.8 µm
Selfie camera resolution

4160 x 3120 pixels

6560 x 4928 pixels
Selfie camera features

Face unlock, HDR, face detection

Face unlock, digital image stabilization
Selfie camera video

4K@30fps, 1080p@30fps

1080p@30fps

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

-

Yes
WiFi Tri-Band

Yes

-
USB

Type-C 3.2

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v5.3

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
NFC

Yes

No
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

Yes
NavIC

Yes

-